After a certain period of use, agricultural tractors may be deemed unfit for further operation and subject to scrapping if they meet any of the following conditions:
1. Large-scale rail tractor tractors that have been in service for more than 12 years (or accumulated 15,000 operating hours) should be considered for scrapping. Even after inspection, adjustment, or replacement of worn parts, their technical condition remains at level 4.1 or 4.2, indicating significant deterioration.
2. Large- and medium-sized wheeled tractors that have exceeded 15 years of service (or 18,000 accumulated operating hours) should also be evaluated for scrapping. If, after maintenance, their technical condition is still classified as 4.1 or 4.2, they are no longer suitable for continued use.
3. Small tractors that have been in use for over 10 years (or 12,000 operating hours) may be scrapped if, after repairs or part replacements, their technical condition remains at 4.1 or 4.3, showing serious performance decline.
4. Tractors that have suffered severe damage due to accidents, mechanical failure, or other causes and cannot be economically repaired should be scrapped. This includes cases where:
- **Article 4.1:** Fuel consumption increases by more than 20% compared to the factory-specified rate under calibrated conditions.
- **Article 4.2:** The effective power or power take-off output of large and medium tractor engines drops by more than 15% from the original factory value.
- **Article 4.3:** The effective power of small tractor engines decreases by more than 15% compared to the factory-specified value.
5. If the cost of major overhaul exceeds 50% of the price of a new tractor of the same type, it is often more economical to replace rather than repair.
6. Tractors that have not yet reached their retirement age but are in poor technical condition and lack access to necessary spare parts should be considered for scrapping.
7. Tractors that have been officially mandated for phase-out by government regulations must be retired regardless of their current condition.
These criteria ensure that only tractors that are no longer safe, efficient, or economically viable remain in operation, promoting both environmental sustainability and operational safety in agriculture.
Bacillus Subtilis Soluble Water
Bacillus Subtilis Soluble Water,Feed Meal For Animal,Feed Meal For Rabbits,Corn Gluten For Feed
CANGZHOU HUAYOU IMPORT & EXPORT TRADE CO., LTD. , https://www.huayoutrade.com